Threshold Resummation for Squark-Antisquark and Gluino-Pair Production at the LHC

Journal Article · Fri Mar 20 04:00:00 EDT 2009 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.102.111802· OSTI ID:21180295

Kulesza, A; Motyka, L ^[1]

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1. Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, D-22607 Hamburg (Germany)

We study the effect of soft gluon emission in the hadroproduction of squark-antisquark and gluino-gluino pairs at the next-to-leading logarithmic (NLL) accuracy within the framework of the minimal supersymmetric model. The one-loop soft anomalous dimension matrices controlling the color evolution of the underlying hard-scattering processes are calculated. We present the resummed total cross sections and show numerical results for proton-proton collisions at 14 TeV. For the gluino-pair production, the theoretical uncertainty due to scale variation is reduced to the few-percent level.

• OSTI ID: 21180295
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 11 Vol. 102; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANOMALOUS DIMENSION
CERN LHC
COLOR MODEL
GLUONS
PAIR PRODUCTION
PROTON-PROTON INTERACTIONS
SPARTICLES
SUPERSYMMETRY
TEV RANGE 10-100
TOTAL CROSS SECTIONS